Sawaal
13
Q:

Which of the following reactions are exothermic?

 

1)   C + O2  → CO22)  2Mg + O2  → 2MgO3)  CuSO4 + 5H2O  → CuSO4.5H2O4)  All the above

A) 1 B) 2
C) 3 D) 4

Answer:   D) 4



Explanation:

Here all the given options are Exothermic reactions. Exothermic reactions are those reactions which involves the release of heat.

 

Generally all the combining reactions are exothermic in nature.

Subject: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO
Related Questions
Q:

What is the pH of water?

A) 7 B) 5
C) 3 D) 1
 
Answer & Explanation Answer: A) 7

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 955
Q:

___________ gases absorb long wave (infrared) radiation from the earth and emit it again towards the earth.

A) Methane B) Greenhouse
C) Carbon dioxide D) Ozone
 
Answer & Explanation Answer: B) Greenhouse

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 893
Q:

Which of the following are highly compressible?

A) Solid B) Liquid
C) Gas D) Solid and Liquid
 
Answer & Explanation Answer: C) Gas

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 919
Q:

Oxide of which of the following will turn red litmus blue?

A) Magnesium B) Phosphorus
C) Sulphur D) Carbon
 
Answer & Explanation Answer: A) Magnesium

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 866
Q:

Which of the following gases is produced due to incomplete combustion of fuel?

A) Carbon Dioxide B) Carbon Monoxide
C) Methane D) Ethane
 
Answer & Explanation Answer: B) Carbon Monoxide

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

3 842
Q:

Why does carbon tetrachloride have no dipole moment?

A) Because of same size of carbon and chlorine atoms B) Because of regular tetrahedral structure
C) Because of planar structure D) Because of similar electron affinities of carbon and chlorine
 
Answer & Explanation Answer: B) Because of regular tetrahedral structure

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

4 823
Q:

Which among the following is false about natural rubber?

A) It is an elastomer B) It is a monomer of cis­isoprene
C) Natural rubber is a polymer of chloroprene D) It is heated with sulphur compounds to improve its properties
 
Answer & Explanation Answer: B) It is a monomer of cis­isoprene

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

5 909
Q:

Ethane gas has a slightly ______ taste.

A) sweet B) bitter
C) sour D) salty
 
Answer & Explanation Answer: A) sweet

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

6 1599